acrn-config: remap PCI vbar address to high memory

1. If the device configure space is not fixed by ACPI and its pbar address
is above 4G or lower than 2G, then remap the vbar address to high memory.
2. Due to GPU might have huge MMIO space which would result in
HV_RAM_SIZE overflow, skip its vBAR remapping for now when the size high
than 1GB.

Tracked-On: #4458
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

misc/acrn-config/library/board_cfg_lib.py

@@ -39,6 +39,11 @@ KNOWN_HIDDEN_PDEVS_BOARD_DB = {
     'apl-up2':['00:0d:0'],
 }
 
+SIZE_K = common.SIZE_K
+SIZE_M = common.SIZE_M
+SIZE_2G = common.SIZE_2G
+SIZE_4G = common.SIZE_4G
+
 
 def prepare(check_git):
     """ check environment """
@@ -433,3 +438,8 @@ def undline_name(name):
     :return: name_str which contain'_'
     """
     return common.undline_name(name)
+
+
+def round_up(addr, mem_align):
+    """Keep memory align"""
+    return common.round_up(addr, mem_align)

misc/acrn-config/library/common.py

@@ -25,6 +25,11 @@ START_HPA_SIZE_LIST = ['0x20000000', '0x40000000', '0x80000000', 'CONFIG_SOS_RAM
 
 MULTI_ITEM = ["guest_flag", "pcpu_id", "input", "block", "network"]
 
+SIZE_K = 1024
+SIZE_M = SIZE_K * 1024
+SIZE_2G = 2 * SIZE_M * SIZE_K
+SIZE_4G = 2 * SIZE_2G
+
 
 class MultiItem():
 
@@ -681,3 +686,8 @@ def get_vuart_info_id(config_file, idx):
             vm_id += 1
 
     return tmp_tag
+
+
+def round_up(addr, mem_align):
+    """Keep memory align"""
+    return ((addr + (mem_align - 1)) & (~(mem_align - 1)))